LP2950-50-S08-T [UTC]
100 mA LOW-DROPOUT VOLTAGE REGULATOR; 百毫安低压差稳压器型号: | LP2950-50-S08-T |
厂家: | Unisonic Technologies |
描述: | 100 mA LOW-DROPOUT VOLTAGE REGULATOR |
文件: | 总7页 (文件大小:96K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LP2950/2951
LINEAR INTEGRATED CIRCUIT
100 mA LOW-DROPOUT
VOLTAGE REGULATOR
1
TO-92
ꢀ
DESCRIPTION
The UTC LP2950/2951 are monolithic integrated voltage
regulators with low dropout voltage, and low quiescent current. It
includes many features that suitable for different applications.
SOP-8
ꢀ
FEATURES
* Fixed output versions, 2.5V, 3V, 3.3V, 3.6V and 5V, are available.
* High accuracy output voltage.
DIP-8
* Extremely low quiescent current and dropout voltage.
* Extremely tight load and line regulation.
* Current and thermal limiting.
*Pb-free plating product number:
LP2950L-XX/LP2951L
* Very low temperature coefficient.
* Logic controlled shutdown and err flog available for 8 pin package.
* Output voltage programmable for LP2951.
ꢀ ORDERING INFORMATION
Ordering Number
Package
Packing
Normal
Lead Free Plating
LP2950L-xx-D08-T
LP2950L-xx-S08-T
LP2950L-xx-S08-R
LP2950L-xx-T92-B
LP2950L-xx-T92-K
LP2951L-D08-T
LP2950-xx-D08-T
LP2950-xx-S08-T
LP2950-xx-S08-R
LP2950-xx-T92-B
LP2950-xx-T92-K
LP2951-D08-T
LP2951-S08-T
DIP-8
SOP-8
SOP-8
TO-92
TO-92
DIP-8
Tube
Tube
Tape Reel
Tape Box
Bulk
Tube
LP2951L-S08-T
SOP-8
SOP-8
Tube
LP2951-S08-R
LP2951L-S08-R
Tape Reel
Note: xx: Output Voltage Code (For LP2950 only)
LP2950L-xx-S08-R
(1)Packing Type
(1) B: Tape Box, K: Bulk, R: Tape Reel, T: Tube
(2) D08: DIP-8, S08: SOP-8, T92: TO-92
(3) xx: refer to Output Voltage Code
(2)Package Type
(3)Output Voltage Code
(4) L: Lead Free Plating, Blank: Pb/Sn
(4)Lead Plating
ꢀ
OUTPUT VOLTAGE CODE(For LP2950)
OUTPUT VOLTAGE
CODE
25
2.5V
3.0V
3.3V
3.6V
5.0V
30
33
36
50
www.unisonic.com.tw
1 of 7
Copyright © 2005 Unisonic Technologies Co., Ltd
QW-R102-001,J
LP2950/2951
LINEAR INTEGRATED CIRCUIT
ꢀ
PIN CONFIGURATIONS
UTC LP2950
OUTPUT
SENSE
1
2
3
4
8
7
6
5
INPUT
OUTPUT
NC
1
2
3
4
8
7
6
5
INPUT
NC
1
2
3
FEEDBACK
5V TAP
UTC
LP2951
UTC
LP2950
SHUTDOWN
GND
SHUTDOWN
GND
NC
OUTPUT
INPUT
GND
ERROR
ERROR
TO-92 Plastic Package
Bottom View
SOP-8 OR DIP-8 PACKAGE
FOR UTC LP2951
SOP-8 OR DIP-8 PACKAGE
FOR UTC LP2950
ꢀ
BLOCK DIAGRAM
5V 150mA
MAX.
UNREGULATED
DC
FEEDBACK
INPUT
OUTPUT
7
8
1
SENSE
5V TAP
ERROR
GND
2
6
5
4
182kΩ
60kΩ
SHUT
DOWN
ERROR
AMPLIFIER
330KΩ
FROM CMOS
OR TTL
3
1.5 μF
60mV
ERROR
DETECTION
COMPARATOR
TO CMOS
OR TTL
1.23
REF
FOR UTC LP2951
UNISONIC TECHNOLOGIES CO., LTD
2 of 7
QW-R102-001,J
www.unisonic.com.tw
LP2950/2951
LINEAR INTEGRATED CIRCUIT
ꢀ
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VCC
RATINGS
-0.3 ~ +30
-1.5 ~ +30
-0.3 ~ +30
-40 ~ +125
-65 ~ +150
UNIT
V
Supply Voltage
Feedback Voltage
VFB
V
Shutdown Voltage
VSHDN
TJ
V
Operation Junction Temperature
Storage Temperature
°C
°C
TSTG
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ꢀ ELECTRICAL CHARACTERISTICS (TJ=25°C, VIN=6V, IL=100µA, CL=1µF, unless otherwise specified.)
For All Version:
PARAMETER
Output Voltage
SYMBOL
VOUT
TEST CONDITION
TJ=25°C (Note 1)
-25°C≦TJ≦+85°C(Note 1)
MIN
TYP
MAX
UNIT
VOUT×0.98 VOUT VOUT×1.02
VOUT×0.98 VOUT VOUT×1.02
V
V
V
Output Voltage
VOUT 100µA≦IL≦100mA, TJ≦TJ(max) VOUT×0.98 VOUT VOUT×1.02
Output Voltage Temperature
Coefficient
TcVo
20
100
ppm/°C
ΔVOUT
ΔVOUT
Line Regulation
6V≦VIN≦30V
100µA≦IL≦100 mA
IL=100µA
0.03
0.04
50
380
75
0.1
0.1
80
450
120
12
0.2
0.2
%
%
Load Regulation
150
600
140
14
VD
IG
Dropout Voltage
Ground Current
IL=100mA (Note 2)
mV
µA
mA
IL=100µA
IL=100mA
8
Dropout Ground Current
Current Limit
VIN=4.5V,IL=100µA
VOUT=0
110
160
170
200
200
220
430
160
100
µA
mA
ILIMIT
eN
Output Noise (10Hz ~ 100KHz)
(Bypass=0.01µF pins 7 to 1
(LP2951))
CL=1µF
CL=200µF
CL=3.3µF
µV
For UTC LP2951 8-Pin Version Only
PARAMETER
Reference Voltage
SYMBOL
VREF
VREF
TEST CONDITION
Over temperature(Note 4)
MIN
1.22
1.19
TYP
MAX
1.25
1.27
40
UNIT
V
1.235
Reference Voltage
V
Feedback pin Bias Current
Reference Voltage Temperature
Coefficient
IFB
20
50
nA
VREF(TC)
IFB(TC)
ppm/°C
nA/°C
Feedback Bias Current
Temperature Coefficient
Error Comparator
0.1
Output Leakage Current
Output Low Voltage
IO(LEAK) VOH=30V
1
µA
mV
VOL
VIN=4.5V, IOL=400µA
250
VTHU
VTHL
VHYS
Upper
Threshold Voltage
Lower
(Note 3)
(Note 3)
(Note 3)
3.2
%VO
%VO
mV
7.6
Hysteresis
15
UNISONIC TECHNOLOGIES CO., LTD
3 of 7
QW-R102-001,J
www.unisonic.com.tw
LP2950/2951
LINEAR INTEGRATED CIRCUIT
ꢀ ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LP2951 8-Pin Version Only
PARAMETER
Shutdown Input
SYMBOL
TEST CONDITION
Regulator ON
MIN
2.0
TYP
1.3
MAX
0.70
UNIT
V
Low
VIL
VIH
Input Logic Voltage
High
Regulator OFF
VSHDN=2.4V
30
50
µA
µA
Shutdown Pin Input Current
ISHDN
IDFF
VSHDN=30V
450
600
Regulator Output Current
Shutdown
VSHDN≧2V, VIN≦30V, VOUT=0
3
10
µA
Feedback pin tied to 5V Tap.
Note 1:Additional conditions for 8-pin versions are FB pin tied to 5VTAP, Output tied to Sense(VOUT=5V) and
VSHDN≤0.8V.
Note 2: Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below
its nominal value measured at 1V differential.
Note 3: Comparator thresholds are expressed in terms of percentage value of voltage output.
Note 4: VREF≤VOUT≤(VIN-1V), 2.3V≤VIN≤30V, 100µA≤IL≤100mA, TJ≤TJ(MAX)
UNISONIC TECHNOLOGIES CO., LTD
4 of 7
QW-R102-001,J
www.unisonic.com.tw
LP2950/2951
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL APPLICATION CIRCUIT
10 Ampere Low Dropout Regulator
CURRENT LIMIT
SECTION
+VIN=Vout+0.5V
680Ω
2N3906
0.05Ω
UTC
D65H0
470Ω
8
4.7MΩ
+VIN
+
V
OUT 100m A
10kΩ
5
7
ERROR
UTC LP2951
SD
R1
100µF
4.7µF
3
FB
1%
220Ω
GND Vout
R2
20kΩ
4
1
47Ω
0.033µF
VOUT=1.23V*(1+R1/R2)
For 5V output use internal resistors.Wire pin 6 to 7 and wire pin2 to +VOUT
Fig.1
UTC LP2950-2.5
V
IN
V
OUT
UTC LP2950-3.0
UTC LP2950-3.3
UTC LP2950-3.6
UTC LP2950-5.0
Fig.2
UNISONIC TECHNOLOGIES CO., LTD
5 of 7
QW-R102-001,J
www.unisonic.com.tw
LP2950/2951
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS
Dropout Characteristics
6
Input Current
150
140
130
120
110
100
90
80
70
60
50
5
RL=50Ω
R =50kΩ
L
4
3
2
1
0
L
R =50Ω
40
30
20
10
0
0
1
3
4
5
6
2
0
1
2
3
4
5
6
7
8
9 10 11 12
Input Voltage (V)
InputVoltage (V)
Ground Pin Current
Ground Pin Current
8
7
6
120
110
100
90
V IN = 6V
IL =100mA
V =6V
IL=100µA
IN
80
70
5
4
60
50
-75 -50 -25
0
25 50 75 100 125 150
-75 -50 -25
0
25 50 75 100125 150
Temperature (℃)
Temperature (℃)
Dropout Voltage
Shutdown Threshold Voltage
1.8
1.6
600
500
IL=100mA
1.4
1.2
400
300
200
100
1.0
L
I =100µA
≈
0.8
0.6
50
0
-75 -50 -25
0
25 50 75 100125 150
-75 -50 -25
0
25 50 75 100125 150
Temperature (℃)
Temperature (℃)
UNISONIC TECHNOLOGIES CO., LTD
6 of 7
QW-R102-001,J
www.unisonic.com.tw
LP2950/2951
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS(Cont.)
Short Circuit Current
Dropout Voltage
500
400
170
160
150
140
130
300
200
120
T
J=25℃
100
0
110
100
10
0.1
1
100
-75 -50 -25
0
25 50 75 100 125 150
Temperature(℃)
Output Current(mA)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
7 of 7
QW-R102-001,J
www.unisonic.com.tw
相关型号:
©2020 ICPDF网 联系我们和版权申明